7th Grade Math

Test PracticeT

C 40. OPEN ENDED Create a display that shows how to determine in what

quadrant a point is located without graphing. Then provide an example

that demonstrates how your graphic is used.

41. FIND THE ERROR Hannah is plotting the point (-3, 4).
    Find her mistake and correct it.

4 ).

42. CHALLENGE Find the possible locations for any ordered pair with x- and
    y-coordinates always having the same sign. Explain.


43. E WRITE MATH Explain why the location of point A(1, -2) is different
    than the location of point B(-2, 1).

y

x

(- 3 , 4 )

O

44. Which of the following points lie within
    the triangle?
    y

0 x

A. A(-4, -1) C. C(-1, 2)

B. B(1, 3) D. D(2, -2)

45. The location of a given point is 3 units
    below the origin on the y-axis. What is
    the ordered pair for this point?
    F. (3, 0) H. (0, –3)
    G. (0, 3) I. (–3, 0)
    46. Which point best represents the location
    of the lunch room?
    y

0 x

gymnasium

computer lab music rooms

lunch room

auditorium

offices

A. (4, -1) C. (1, 4)

B. (-4, 1) D. (1, -4)

47. Point A has an x-coordinate of -2. If
    point A’s y-coordinate is positive, in
    which quadrant is point A located?
    F. I H. III
    G. II I. IV

Lesson 1C Integers and the Coordinate Plane 85

Move 3 units down

and then 4 units

to the right.

076_085_C2L1_895130.indd 85 12/29/09 12:44 PM